The english site is up now. I hope it updates every Friday soon as well. Here is a list of the arcanas BTW and some of the details given about the battle system courtesy of posters on Gamespot and Neogaf respectively. Some of which are interesting. Personally, I don't think Death is a mystery character. I think s/he may be an actually dead person; which could explain the silhouette form.
1. MC : Fool.
2. Hanamura Yousuke : Magician.
3. Amagi Yukiko : Priestess.
4. Margaret !?!?!? : Empress.
5. Tatsumi Kanji : Emperor.
6. Doujima Ryoutaro : Heirophant.
7. Kujikawa Rise : Lovers.
8. Satonaka Chie : Chariot.
9. Doujima Nanako : Justice.
10. Kitsune / Fox : Hermit.
11. Soccer Club (Daisuke Nagase & Kou Ichijou) : Strength.
12. ??? : Death.
13. A teacher ??? : Temperance.
14. Nurse : Devil.
15. Another Maya??? : Tower.
16. Kuma : Star.
17. Ebihara Ai : Moon.
18. Matsunaga Ayane : Sun.
19. Ozawa Yumi : Sun.
1. If you hit a weakness -> One More happens
2. If all enemies down -> Final Attack
3. If using hit-all attack, even you only hit one enemy's weakness, you can still get One More
4. Character can act the very next turn even in Down status
5. During down, if the weakness is exploited, "Faint" status will happen. Character can lost at least one turn of action.
6. Sometimes physical critical and cause Down + Faint together
7. Enemy reinforcement may happen after all of them are wiped out.
8. Depending on the commu development other characters will take damage for the main during battle.
9. Analysis doesn't take time, but it seems the record will not carry over. You'd have to do it again in next battle.
10. After choosing escape, you can't go instantly, instead you got to carry on the battle for a while
Here's a link of the battle music.
http://youtube.com/watch?v=gRwFapCq3vY It doesn't beat Mass Destruction, but I love the tempo. With the game launching in Japan soon we'll soon get a better taste of the OST as a whole.
This second link contains the boss music, but does contain mild, mild spoilers.
http://www.youtube.com/watch?v=Nx3M9ddrlf8